Module: RGeo::Feature::Type

Included in:
Curve, Geometry, GeometryCollection, Line, LineString, LinearRing, MultiCurve, MultiLineString, MultiPoint, MultiPolygon, MultiSurface, Point, Polygon, Surface
Defined in:
lib/rgeo/feature/types.rb

Overview

These methods are available as module methods (not instance methods) of the various feature types. For example, you may determine whether a feature object is a point by calling:

::RGeo::Feature::Point.check_type(object)

A corresponding === operator is provided so you can use the type modules in a case-when clause.

You may also use the presence of this module to determine whether a particular object is a feature type:

object.kind_of?(::RGeo::Feature::Type)

Constant Summary collapse

Instance =

Deprecated alias for RGeo::Feature::Instance

Feature::Instance

Instance Method Summary collapse

Instance Method Details

#check_type(rhs_) ⇒ Object Also known as: ===

Returns true if the given object is this type or a subtype thereof, or if it is a feature object whose geometry_type is this type or a subtype thereof.

Note that feature objects need not actually include this module.



78
79
80
81
 
# File 'lib/rgeo/feature/types.rb', line 78

def check_type(rhs_)
  rhs_ = rhs_.geometry_type if rhs_.kind_of?(Feature::Instance)
  rhs_.kind_of?(Type) && (rhs_ == self || rhs_.include?(self))
end

#subtype_of?(type_) ⇒ Boolean

Returns true if this type is the same type or a subtype of the given type.

Returns:

  • (Boolean) 


88
89
90
 
# File 'lib/rgeo/feature/types.rb', line 88

def subtype_of?(type_)
  self == type_ || self.include?(type_)
end

#type_name ⇒ Object

Returns the OpenGIS type name of this type.



95
96
97
 
# File 'lib/rgeo/feature/types.rb', line 95

def type_name
  self.name.sub('RGeo::Feature::', '')
end